Kotaro Miyachi defeated Tetsuya Chaen 6-1 6-4 in the Japan Masters 3 round of 32 on hard. Kotaro Miyachi extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-07-07 | Japan 1 Masters 2 | QF | hard | Kotaro Miyachi | 6-4 6-2 |
| 1992-11-02 | Japan Masters 3 | R32 | hard | Tetsuya Chaen | 6-2 4-6 6-2 |
Averages over each player's completed matches in the selected window (2 vs 2). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About